Generating artificial gravity on spaceships using centrifuges is a common idea in hard-sci-fi and in speculation about space travel, but no-one seems to consider them for low gravity on e.g. Mars. Am I mistaken in thinking that all you'd need to do is build the centrifuge with an angled floor, so the net force experienced from gravity and (illusory) centrifugal force is straight "down" into it?

I realise there'd be other practical problems with centrifuge-induced artificial gravity on Mars, since it's full of dust and not the best environment, but that doesn't seem to be the right kind of objection to explain it never being brought up where I've seen it.